DE69311840D1 - Press mold for the production of a micro-optical element, associated manufacturing process, micro-optical element and manufacturing process - Google Patents

Press mold for the production of a micro-optical element, associated manufacturing process, micro-optical element and manufacturing process

Info

Publication number
DE69311840D1
DE69311840D1 DE69311840T DE69311840T DE69311840D1 DE 69311840 D1 DE69311840 D1 DE 69311840D1 DE 69311840 T DE69311840 T DE 69311840T DE 69311840 T DE69311840 T DE 69311840T DE 69311840 D1 DE69311840 D1 DE 69311840D1
Authority
DE
Germany
Prior art keywords
micro
manufacturing process
optical element
production
press mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69311840T
Other languages
German (de)
Other versions
DE69311840T2 (en
Inventor
Makoto Umetani
Masaki Aoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69311840D1 publication Critical patent/DE69311840D1/en
Application granted granted Critical
Publication of DE69311840T2 publication Critical patent/DE69311840T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1876Diffractive Fresnel lenses; Zone plates; Kinoforms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/36Moulds for making articles of definite length, i.e. discrete articles
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06Construction of plunger or mould
    • C03B11/08Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/082Construction of plunger or mould for making solid articles, e.g. lenses having profiled, patterned or microstructured surfaces
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06Construction of plunger or mould
    • C03B11/08Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/084Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
    • C03B11/086Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor of coated dies
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/0006Arrays
    • G02B3/0012Arrays characterised by the manufacturing method
    • G02B3/0025Machining, e.g. grinding, polishing, diamond turning, manufacturing of mould parts
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/0006Arrays
    • G02B3/0012Arrays characterised by the manufacturing method
    • G02B3/0031Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/02Simple or compound lenses with non-spherical faces
    • G02B3/08Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1847Manufacturing methods
    • G02B5/1852Manufacturing methods using mechanical means, e.g. ruling with diamond tool, moulding
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122Basic optical elements, e.g. light-guiding paths
    • G02B6/124Geodesic lenses or integrated gratings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12Thermoplastic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00Optical elements, e.g. lenses, prisms
    • B29L2011/0016Lenses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00Optical elements, e.g. lenses, prisms
    • B29L2011/0016Lenses
    • B29L2011/005Fresnel lenses
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/02Press-mould materials
    • C03B2215/08Coated press-mould dies
    • C03B2215/10Die base materials
    • C03B2215/12Ceramics or cermets, e.g. cemented WC, Al2O3 or TiC
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/02Press-mould materials
    • C03B2215/08Coated press-mould dies
    • C03B2215/14Die top coat materials, e.g. materials for the glass-contacting layers
    • C03B2215/16Metals or alloys, e.g. Ni-P, Ni-B, amorphous metals
    • C03B2215/17Metals or alloys, e.g. Ni-P, Ni-B, amorphous metals comprising one or more of the noble meals, i.e. Ag, Au, platinum group metals
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/02Press-mould materials
    • C03B2215/08Coated press-mould dies
    • C03B2215/30Intermediate layers, e.g. graded zone of base/top material
    • C03B2215/31Two or more distinct intermediate layers or zones
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/02Press-mould materials
    • C03B2215/08Coated press-mould dies
    • C03B2215/30Intermediate layers, e.g. graded zone of base/top material
    • C03B2215/32Intermediate layers, e.g. graded zone of base/top material of metallic or silicon material
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/40Product characteristics
    • C03B2215/41Profiled surfaces
    • C03B2215/412Profiled surfaces fine structured, e.g. fresnel lenses, prismatic reflectors, other sharp-edged surface profiles
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/40Product characteristics
    • C03B2215/41Profiled surfaces
    • C03B2215/414Arrays of products, e.g. lenses
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083Constructional arrangements
    • G02B2006/12102Lens

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
DE69311840T 1992-04-21 1993-04-20 Press mold for the production of a micro-optical element, associated manufacturing process, micro-optical element and manufacturing process Expired - Fee Related DE69311840T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10083592A JP3147481B2 (en) 1992-04-21 1992-04-21 Mold for forming glass diffraction grating, method for manufacturing the same, and method for manufacturing glass diffraction grating

Publications (2)

Publication Number Publication Date
DE69311840D1 true DE69311840D1 (en) 1997-08-07
DE69311840T2 DE69311840T2 (en) 1997-11-27

Family

ID=14284377

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69311840T Expired - Fee Related DE69311840T2 (en) 1992-04-21 1993-04-20 Press mold for the production of a micro-optical element, associated manufacturing process, micro-optical element and manufacturing process

Country Status (4)

Country Link
US (1) US5436764A (en)
EP (1) EP0567896B1 (en)
JP (1) JP3147481B2 (en)
DE (1) DE69311840T2 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6003336A (en) * 1993-07-28 1999-12-21 Matsushita Electric Industrial Co. Ltd. Method of manufacturing a die for press-molding optical elements
EP0768280B1 (en) * 1993-07-28 1999-10-27 Matsushita Electric Industrial Co., Ltd Die for press-molding optical elements and methods of manufacturing and using the same
RU2083733C1 (en) * 1993-10-20 1997-07-10 Совместное предприятие "Амкрис-Эйч, Лтд." Method of manufacturing large-size polycrystalline plates from optical and scintillation materials
DE69529334T2 (en) * 1994-09-09 2003-10-16 Koninkl Philips Electronics Nv METHOD FOR PRODUCING A MOLD FOR USE IN MANUFACTURING AN OPTICAL ELEMENT CONTAINING OPTICAL SUB-ELEMENTS ARRANGED IN A PATTERN, AND DEVICE FOR CARRYING OUT THE METHOD
US5770120A (en) * 1994-12-09 1998-06-23 Olympus Optical Co., Ltd. Method of manufacturing die and optical element performed by using the die
US5602947A (en) * 1995-01-05 1997-02-11 Ceram Optee Industries, Inc. Anti-reflective mid-infrared optical fiber and micro optical components
US5636057A (en) * 1995-02-10 1997-06-03 Ecolux Inc. Prismatic toroidal lens and traffic signal light using this lens
US5997709A (en) * 1996-05-28 1999-12-07 Minnesota Mining And Manufacturing Co. Method of providing diffuse risers on a fresnel lens die
JP2920164B2 (en) * 1997-01-17 1999-07-19 サイマー,インコーポレーテッド Reflective overcoat for replica gratings
WO1998033222A1 (en) * 1997-01-27 1998-07-30 Corning Incorporated Rigid battery separator with compliant layer
US5958469A (en) * 1997-05-14 1999-09-28 Eastman Kodak Company Method for fabricating tools for molding diffractive surfaces on optical lenses
US6162495A (en) 1997-09-29 2000-12-19 Cymer, Inc. Protective overcoat for replicated diffraction gratings
US6330261B1 (en) 1997-07-18 2001-12-11 Cymer, Inc. Reliable, modular, production quality narrow-band high rep rate ArF excimer laser
JPH11236229A (en) 1997-12-16 1999-08-31 Ngk Insulators Ltd Mold for press forming of glass element
US6570505B1 (en) 1997-12-30 2003-05-27 Gelcore Llc LED lamp with a fault-indicating impedance-changing circuit
US20020027301A1 (en) 1998-06-11 2002-03-07 Hideo Kato Method for manufacture of optical element
US6352759B2 (en) * 1998-08-20 2002-03-05 Physical Optics Corporation Non-lambertian glass diffuser and method of making
WO2000046622A1 (en) 1999-02-05 2000-08-10 Corning Incorporated Optical fiber component with shaped optical element and method of making same
JP3751778B2 (en) * 1999-04-26 2006-03-01 日本板硝子株式会社 Method for producing sol-gel molded product
US7179536B1 (en) * 1999-09-29 2007-02-20 Konica Corporation Optical element having a low surface roughness, an optical pickup device including the optical element, and a die for making the optical element
DE19956654B4 (en) * 1999-11-25 2005-04-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for structuring surfaces of micromechanical and / or microoptical components and / or functional elements made of vitreous materials
US20020118465A1 (en) * 2001-02-28 2002-08-29 Konica Corporation Molding die for optical element, optical element and master die
WO2002070739A2 (en) * 2001-03-08 2002-09-12 Boehringer Ingelheim (Canada) Ltd Assay for identifying inhibitors of the rna dependent rna polymerase (ns5b) of hcv
US20030115907A1 (en) * 2001-09-07 2003-06-26 Patton Edward K. Multiple lens molding system and method
KR100446914B1 (en) * 2001-11-14 2004-09-01 주식회사 엘지에스 Method and device of producing DOE Lens
DE10207952A1 (en) * 2002-02-25 2003-09-04 Max Planck Gesellschaft Process for producing porous material with a periodic pore arrangement
US6899838B2 (en) * 2002-07-12 2005-05-31 Becton, Dickinson And Company Method of forming a mold and molding a micro-device
CN1688516A (en) * 2002-10-04 2005-10-26 康宁股份有限公司 Lens array, method for fabricating the lens array and photosensitive glass plate
KR20040061658A (en) * 2002-12-31 2004-07-07 삼성전자주식회사 Hybrid achromatic optical lens and manufacturing method thereof
US20040183220A1 (en) * 2003-03-18 2004-09-23 Avinash Dalmia Ultra thin layer coating using self-assembled molecules as a separating layer for diffraction grating application
JP4007269B2 (en) * 2003-07-29 2007-11-14 オムロン株式会社 Biomolecule shape transfer method, chip substrate manufacturing method, and biochip manufacturing method
JP2005250469A (en) * 2004-03-05 2005-09-15 Arisawa Mfg Co Ltd Lens, transmission type screen, and method for manufacturing lems
WO2005097450A1 (en) 2004-03-31 2005-10-20 Konica Minolta Opto, Inc. Process for producing metal mold for optical device forming
DE102004021215C5 (en) * 2004-04-29 2014-10-30 Schott Ag Method for forming an optical element
JP4576961B2 (en) * 2004-09-28 2010-11-10 株式会社島津製作所 Method for manufacturing replica diffraction grating
JP4575787B2 (en) * 2005-01-07 2010-11-04 アルプス電気株式会社 Mold manufacturing method
US20060170774A1 (en) * 2005-01-31 2006-08-03 Eastman Kodak Company Method and apparatus for calibrating and correcting tone scale differences between two or more outputs of a CCD
US7561611B2 (en) 2005-02-03 2009-07-14 Corning Incorporated Extended-lifetime elements for excimer lasers
JP5266059B2 (en) * 2005-11-18 2013-08-21 ナノコンプ オイ リミテッド Manufacturing method of diffraction grating
JP2009529400A (en) * 2006-03-10 2009-08-20 アルザ コーポレイション Application of microprojection array with high barrier holder
US8141384B2 (en) * 2006-05-03 2012-03-27 3M Innovative Properties Company Methods of making LED extractor arrays
KR100782468B1 (en) * 2006-05-22 2007-12-05 삼성에스디아이 주식회사 Laser irradiation device and Fabrication method of organic light emitting display device using the same
TWI481064B (en) * 2007-02-13 2015-04-11 3M Innovative Properties Co Led devices having lenses and methods of making same
US9944031B2 (en) * 2007-02-13 2018-04-17 3M Innovative Properties Company Molded optical articles and methods of making same
US8958070B2 (en) * 2007-05-29 2015-02-17 OptoTrace (SuZhou) Technologies, Inc. Multi-layer variable micro structure for sensing substance
DE102008038910A1 (en) 2008-08-13 2010-02-18 Schott Ag Method and device for producing a structured article and structured article
US9981844B2 (en) * 2012-03-08 2018-05-29 Infineon Technologies Ag Method of manufacturing semiconductor device with glass pieces
JP6188743B2 (en) * 2014-06-19 2017-08-30 キヤノン株式会社 Optical element having a plurality of optical functional surfaces, spectroscopic device, and manufacturing method thereof
US10969560B2 (en) 2017-05-04 2021-04-06 Lightpath Technologies, Inc. Integrated optical assembly and manufacturing the same
JP7076147B2 (en) * 2017-08-11 2022-05-27 ナルックス株式会社 Mold manufacturing method
CN110923754A (en) * 2019-12-04 2020-03-27 瑞声通讯科技(常州)有限公司 Manufacturing method of Fresnel mold easy to demold
CN111637645A (en) * 2020-05-20 2020-09-08 杨金玉 Application of glass linear Fresnel lens in solar energy
CN112034543B (en) * 2020-09-01 2023-01-24 湖北新华光信息材料有限公司 Compression molding method for infrared diffraction surface optical element

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54110857A (en) * 1978-02-17 1979-08-30 Nec Corp Optical production of sawtooth photo-sensitive resin flim
JPS5557807A (en) * 1978-10-25 1980-04-30 Hitachi Ltd Production of diffraction grating
JPS5835742A (en) * 1981-08-21 1983-03-02 Victor Co Of Japan Ltd Manufacture for stamper used for manufacture of information recording medium disc
JPS6025761A (en) * 1983-07-22 1985-02-08 Seiko Epson Corp Ink jet head
JPS60246230A (en) * 1984-05-17 1985-12-05 Matsushita Electric Ind Co Ltd Mold for press molding of optical glass element
US4753414A (en) * 1986-04-14 1988-06-28 Balzers Optical Corporation Carbon coatings in replicated optics art
US4842633A (en) * 1987-08-25 1989-06-27 Matsushita Electric Industrial Co., Ltd. Method of manufacturing molds for molding optical glass elements and diffraction gratings
JPH0243590A (en) * 1988-08-03 1990-02-14 Sharp Corp Production of blaze hologram
US5171347A (en) * 1989-01-13 1992-12-15 Matsushita Electric Industrial Co., Ltd. Method of manufacturing glass optical element
JPH0823602B2 (en) * 1989-01-30 1996-03-06 松下電器産業株式会社 Method for manufacturing die for press-molding diffraction grating and method for manufacturing diffraction grating
US5071597A (en) * 1989-06-02 1991-12-10 American Bank Note Holographics, Inc. Plastic molding of articles including a hologram or other microstructure
JPH0725557B2 (en) * 1989-06-20 1995-03-22 松下電器産業株式会社 Method for producing press-molding die for optical element and method for producing optical element
JPH0356901A (en) * 1989-07-26 1991-03-12 Canon Inc Grating lens system
JPH03279901A (en) * 1990-03-28 1991-12-11 Omron Corp Production of optical element array

Also Published As

Publication number Publication date
JP3147481B2 (en) 2001-03-19
JPH05297210A (en) 1993-11-12
EP0567896B1 (en) 1997-07-02
EP0567896A1 (en) 1993-11-03
DE69311840T2 (en) 1997-11-27
US5436764A (en) 1995-07-25

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee